//
// Created by qyyde on 2024/1/21.
//
#include <stdio.h>

int main() {
    int target = 7, result = 0;  //target是要获取的数，result是结果

    //请在这里实现算法
    int a = 1;
    int b = 1;
    int c;
    for (int i = 2; i < target; ++i) {
        c = a + b;
        a = b;
        b = c;
    }
    result = c;

    printf("%d", result);
}